I don't know how they got details. They want to charge me for a service that I know nothing about. As soon as I saw the amount taken from PayPal. I called the company, explained that that someone has stole my details to pay for your service. They told me to call the police and put the phone down.
I disputed the payment with PayPal, they got my money back. And blocked Usenet.
I now get demanding letters from a German dept collection service, which I am very worried about.
I logged my issue with Usenet on the action fraud website. Which is a uk organization which tackles cyber fraud. And is run by police.
By reporting Usenet to action fraud you, will be adding to their info and highlighting the company as a dangerous fraudulent company.
http://www.actionfraud.police.uk